V1.5

Rod_Quarry.lua

@@ -8,6 +8,8 @@ local N_COLS = 4
 local FUEL_LOW_LIMIT = 2096
 -- Amount of fuel items consumed on a single refuel
 local REFUEL_AMOUNT = 4
+-- Minimum stack size for fuel item (on slot 1) 
+local N_FUEL_STOCK = 8
 
 -- Amount of layers of N_ROWS by N_COLS wide to be dug, if 0 then infinite amount of layers
 -- Relative to what? Layer (y) at which turtle starts, buddy
@@ -28,19 +30,6 @@ function Is_Even(num)
   end
 end
 
--- Performs a fuel check and attempts to refuel from slot 1
-function Fuel_Check()
-  local fuel_level = turtle.getFuelLevel()
-    if fuel_level < FUEL_LOW_LIMIT then
-        turtle.select(1)
-        if(not turtle.refuel(REFUEL_AMOUNT)) then
-          print("Couldn't Refuel Turtle!'")
-           return false
-        end
-    end
-    return true
-end
-
 -- Checks if slot 16 has an item, returns true if so
 function Check_FullInv()
   if (turtle.getItemCount(16) == 0) then
@@ -57,19 +46,46 @@ function Place_Items()
     turtle.select(i)
     turtle.drop()
   end
+  turtle.select(1)
+end
+
+function Restock_Fuel()
+  turtle.turnRight()
+  turtle.suck(turtle.getItemSpace(1))
+  turtle.turnLeft()
 end
 
-function Inventory_Routine()
+-- Goes home, unloads items and goes back
+function Home_Routine()
   --Check if Last Inventory spot is used, if so unload
   if(Check_FullInv()) then
     Go_Home()
     Place_Items()
+    Restock_Fuel()
     turtle.turnLeft()
     turtle.turnLeft()
     Go_Back()
   end
 end
 
+-- Performs a fuel check and attempts to refuel from slot 1
+function Fuel_Check()
+  local fuel_level = turtle.getFuelLevel()
+    if fuel_level < FUEL_LOW_LIMIT then
+        turtle.select(1)
+
+        -- Restock Fuel if fuel stock below N_FUEL_STOCK
+        if(turtle.getItemCount(1) < N_FUEL_STOCK) then
+          Home_Routine()
+        end
+        if(not turtle.refuel(REFUEL_AMOUNT)) then
+          print("Couldn't Refuel Turtle!'")
+           return false
+        end
+    end
+    return true
+end
+
 -- Tries to dig in front of turtle, if inventory is full empties the inventory at home and then returns
 function Dig_Infront()
   local r, err = turtle.dig()
@@ -349,7 +365,7 @@ function Mine_1Layer()
       Count_Row()
 
       -- Check if inventory is full
-      Inventory_Routine()
+      Home_Routine()
     end
 
     -- turn
@@ -381,7 +397,7 @@ function Mine_1Layer()
       turtle.turnRight()
     end
 
-    Inventory_Routine()
+    Home_Routine()
     Fuel_Check()
   end
 
@@ -395,7 +411,7 @@ function Mine_1Layer()
     Count_Row()
 
     -- Check if inventory is full
-    Inventory_Routine()
+    Home_Routine()
   end
 
   return 0
@@ -429,6 +445,8 @@ function Main()
     end
 
     CURRENT_LAYER = CURRENT_LAYER + 1
+
+    Home_Routine()
   end
 
   return 0